Force-feed lubricator.



C. Gl HAWLEY.

FORCE FEED LUBRICATO'R.

APPUCATIQN min maa 1906.

l ,1 84,346. lzltvntod May 23, 1916.

6 SHEETSSHEET l.

,gi/mgm i C. GA HAWLEY.

FORCE FEED LuBRlcAToR.

APPLICATION FILED DEC.8. |906. 1 ,1 84,346. Patented May 23, 1916.

6 SHEETSf-SHEET 2.

C. G. HAWLEY.

FORCE FEED LUBRICATOR.

APPLILMION mio DEC` lfm.

lntvntwl )luy 23,1916.

b SHhElS SHhL .Sv

Patented May 23, 1916.

6 SHEETS-SHEET 4.

C. G. HAWLEY.

FORCE FEED LUBRICATOR.

\ APPLICATION FILED DEC-8.1906. 1,184,346.

hen'ar I WQ l. u

r. U C Y Il N w H wwo NR C C. G. HAWLEY.

FORCE FEED LLBHICMOR,

wPLlcAxoN man um@ um lntvntwl May Q3, 1916.

(j SHELTS SHEY ti,

Uff/7112515153 `UNITED STATES PATENT onirica.

CHARLES ILBER'r RAWLEY, or CHICAGO, ILLINOIS.

Fon'cFfFEED LUIanIcA'ron,

To all whom it may concern.'

Be it known that I, CHARLES GILBERT HAWLEY, a citizen of the United States, and

a resident of Chicago, Cook county, Illinois,

have invented a certain new, useful, and Improved F orceFeed Lubricator, of which the following is a full, clear, and exact descriptioin such as will enable others skilled in the art to which it appertains to make and use the same. i

My invention relates to mean: for lubricating machinery, engines, and the like, and my invention has special reference to improvements "in Iubricators of that .class 1 known as force feed lubricators.

The object of my invention is to provide a lubricating device, or o iler, which shall beV adapted to supply oil under pressure to numerous hearings or points of use.

The special vobjects of my invention will ap ear hereinafter.

. y invention consists generally in a mechanical, or force feed lubricator, having a plurality of outlets, with means for regulating or adjusting the size of each of said 0utlets, independent of the others.

Further, my invention consists of a device of the class mentioned, wherein a small body of air is compressed, and furnishes the force-for ejecting the oil through said outlets, and further, my invention consists of a, device of the class described, containing an oil chamber wherefom outlets lead, in combination with means for charging the same with oil under pressure, and said chamber being provided with an opening, or by-pass, through which oil is discharged with a velocit y proportional to the pressures at which the oil is maintained within the chamber, and further, my invention consists in a de vice of the class mentioned, comprising a chambered casing, or body, having a plurality of outlet openings, in combination with means for adjusting or regulating the size of said openings, means for maintaining constunt pressure Within said chamber, for the purposes hereinafter described and further, my invention consists in a chambered body, or casing, provided with suitable outlets, in combination with a pump for delivering the oil to said casing, a distributer controlling said outlets, means for driving said distributer and pump, and a by-pass connectin the interior of the casing with the intake en of said pump, and my invention also con- Spccication of Letters Patent.

istood by reference to sists in a chambered body, or casing, provided with a plurality of valved outlets, and provided with an air dome, or chamber, in combination with a pump for delivering oil to said casing, and suitable pressure regulating mer nsresponsive to variations o f pressure within said casing.-

'My invention also consists in various novel constructions and combinations of parts, all as hereinafter described and particularly pointed out in the claims.

The invention'will be more readily underthe accompanying drawings, forming a/part of this specification, and in which- Figure 1, is an elevation of a force feed lubricator embodying my invention. Fig. 2, is a sectionall view thereof, on the iine A, of Fig. l. Fig. 3, is a sectional view on the line B, B, of 1. Fig. s, is transverse Sectional view on the line C, C, of Fig.v Fig. 5, is an elevation of the opposite sido of the lubricator. Fig. is a pian 'view of the device from beneath, a portion of one of the outlet connections beingshown in Se@ tion. Fig. 7, is a view of the distributor, or disk. Fig. 8, is an inner side view of the outlet side of the casing. Fig. 9, is a det-ail view of the pump cylinder Fig. 10, is a rear side elevation of my der! in modiiied. for'm. Fig. 11, is a vertical section oir-the line D, D, of Fig. 12. Fig. 12, is a sectional View on the line E, E, of Fig. 11. Fig. 1.3, is a sectional view on the line F F, of 11. Fig. 14, is a horizontai section on the irregular line G, G, of Fig. 11. Fig. 15, is a partial sectional view on the line H, H, .of` Fig. 10. Fig. 1G, is a side elevation. of an engine, showing the lubrica tor of Figs. 1G to 15 attached thereto. Fig 1?, is an end view taken from Fig. 16. 18, asectional detail of the strainer.

Referring to Figs. 1 to 9, of the drawings, Y it will beseen that a preferred form of my lubricating device, comprises two substanti-' ally circular halves, 1 and 2, fastened together by a. number of bolts, or screws, 3. The joint between the halves is made -to be tight. The parts 1 and 2 contain centralv bearings 4 and 5, for a shaft, 6. One portion, 7, of this shaft is square, another portion, 8, forms an eccentric, and still another portion, 9, forms a part of a stalling box,

Patented''ay 23, 1916. Application led December 8, 1906. Serial No. 346,896.

whereof, 10, is the cavity which contains Ilo z Y annular surface. 11. o

12. at the same distance from the 3o occupied by pump. oil will b should he .5o of a large hodj.

described. but.

to project the shalt. and thus drives it against the packing. thereby closing the joint between the .shalt and the bearing, The part. 2. is provided with a concentric The outlet holes, 13. are bored through the .surface 11. and being continued through the nipples 1l. are controlled or regulated b v the pin valves 15. The disk 12 is provided with a single hole. center as the holes 13. Obviously. rotation ot' the disk causes the hole 12 to register with the holes 13, successively. The disk is providedwith a square hole, 12". fittingr the square of the shaft. through the inedium of which the disk is rotated. A simple. spring 12 (Fig. 2). presses the disk against the. annular seat 11. to hold it in place when there is no pressure of oil with- 20 in the easing. The member. 1. ofthe casing.

lin this 17, of the pump. This a plug which is screwed and is provided with a contains a hole. 1f?. in its bottom. place the cylinder. cylinder resembles into the opening.

25 shoulder, 17. whereby a tighty [it is insured.

The upper end of the inlet duct 1T is closed by a ball valve, 1N. or like 4gravity valve. The lower end ot' the pump is squared to receivc a wrench. 'lhe .short cylinder 17 is a plunger. 1f). ot' the pump. rThe upper end of this plunger is formed by the yoke. lfb. which tits the eccentric fa. whereby the plunger is reciprocated when the .shalt is rotated. 'it' desired. the plunger 35 may be litted tightly in the cylinder'. 1T. and

may contain a valve o1' other form, but I prefer to provide the plunger with shallow. liaigriludinal frrooves. 19". and employ a cup packing. 19. Upon the upst.roke ot' the upon the down-stroke the the cup packing nal grooves 19 into the cavity. or chamber. wherein the pump cylinder is located. It noted that this pump is made as small as possible. my purpose in thisregard being to limit the capacity ot' the ehan'iher, with a view to reducingr the size ot' the device as a 'e lt'il.

oil will flow past and through the longitudiol' oil which might lind its escape thioagrh the opt-nimev in the disk. should the same happen to stop before one ot' -the outlets. lil. l. however. provide -means to prevent sur-h action, as hereinafter nevertheless. seek .to'reduce the cavity to minimum size'. `Nithin the upper parl olI the eas-inemember7 1, l proA vide a chamber. or air dome. 2t). (See Figs. 2. 3. and l). This chamber communicates a0 with the main chamber by means of open ine's. 2H. at its lower ends. It is obvious` that the chamber will initially contain air. and that when oil forced into the main Chamber of the casing. it will be driven upe@ wat d sito the dome, thereby compressing the e drawn past the ball. and' and avoiding' the presence body of air therein, which bodyl operates alter the lnauner of the air in the dome of an ordinary steam pump. .s.i\ in;A th:- device from hammer blows ol' the pulg. and main-- taining the pressure during.r tlareturn si ruhe of the. pump plunger. v employing:f a simple hotly of air under compression within the device, I have been enabled to operate the lubrieator at very high pressures. notwithstanding the fact that the operation of the distributing)r device is intermittent. 5o perfeet is this operation that it is dillieult to de teet the pulsations ol' the pump when the device is in action. lt will be noted that the air dome partially surrounds the cavity which contains thtI pump yoke. and the inner walls thereof furnish the guides, 1J, for said yoke. Referring to liig. l. 21 represents a bypass. which 1 find to he not only desirable, but practically necessary in lubricators which are operated at high speeds and pressures. This by-pass connects the main chamber. or pressure cavity of the device with the intake duct. 1T". ol the pump. (See passages 21. 21. 21". and the' passage 7", in the pump plug). 22 is a pin valve for controlling the tlow of oil through the by-pass, and 23 is a check valve for closing the by-pass against ythe return llow of oil. at times when the rotation ot the disk is stopped. The cheek valve comprises the andthe sprint;r

ball. 23,*the ball carrier. 22%.

23 An opening in the carrier 2 permits it to move with respect to the pin valve and when relieved from pressure from above, the springr will torce the ball upward. closing?r the lower end of the duct 21. This cheek valve is only used when oil is supplied to the pump with slight pressure. that being;r the only condition under which it would he possible to .suffer loss otl oil from leakage through the luhricator. and this could only occur il the openin,"r in the disk happened to stop opposite an outletI opening. 1?. The duct 21 is made of sullicieut .sr/.e to carry away the entire supply ol' oil from the pump. if need be, and the quantity which shall be permitted to pass hack therethrough is determined by means ol` the valve 22. For convenience. I have termed the passage 21 as the bleeder. or bleeder passage. and the part 22 is called the bleeder valve. t the opposite side of the pump from the bleeder, l provide a like passage. 2l.' made tortuous at its lower end. and openingr through the bottonrot' the member 1. This passage does not communicate with the pump as herein shown. but it will be obvious that it may he connected therewith to .save the small quan- `ity of oil which passes therethrough. yas hereinafter explained. The passage is normally closed by a valve 2.3. which is held in place by the spring-pressed stem. 2G. The spring cavity is closed by a plug, 26

. upon its seat.

and a screw, 26", therein, is normally seated against the stem, to positively hold the ball When the screw is turned back, the stem is relieved, and at such times the ball is held only by the spring 26". This device I term the adjusting valve, and it is only used during the time that the pin valves 15 are being adjusted. At such times the bleeder valve is closed and the adjusting valve is opened, the latter, because of its spring, opposing a fixed definite resistance to the escape of oil from the casing, or body, thereby maintaining constant pressure within the same, it being assumed that the pump is in operation. The pin valves 15 'and 22 have long heads, which enter cavities provided therefor. These cavities are filled with packin and no other stufiing boxes are re uired. (Cee Figs. 4, 5, and 6).

he action of the lubrieator here described, is as follows:`-It is assumed that several, or all, of the nipples are connected with small oil pipes-which lead to the various parts of the bearings of the machine or engine. Also, the dome is connected with a reservoir of oil, the lower end of the pump, as shown, being threaded to receive the oil supply pipe. Suitable means being pro-- vided for driving the shaft, it is set in rotation. The rotation of the shaft reciprocates the pump plunger, and rotates the disk distributer upon the annular seat on the member 2, carrying its opening rapidly from one oil discharge opening. 13, to the next in series. The person desiring to adjust the How of oil from the outlets 13, first closes all of the pin valves 15. After this is done` the screw 26 is turned back to free the adjusting valve, and then the bleeder valve is closed. The pump soon fills the cavity Y Within the body, or casing. and when the pressure therein becomes sufficient to overcome the spring 26', the valve 25 will be forced away from its seat, and the oil will drop or flow from the bottom of the lubricator. Observing this, the person knows that suiiicient pressure has accumulated in the lubricator, and thereupon begins the adjustment of the pin valves, 15, and adjusts them one after the other according to the requirements of the bearings` or machine parts, which they represent. These adjustments having been completed` the bleeder valve is opened, whereupon the pressure within the device will be reduced. The adjusting valve is then closed by driving the screw against the stem 26, to lock the ball on its seat and close the passage 24. After these adjustments are made. the bleeder valve is quickly adjusted to give exactly the right quantity of oil at the outlets. and as said outlets were adjusted at constant pressure, it will be obvious that the orifices will have fixed relations as to size. This relation will not be changed thereafter, except by readjustment of the pin valve 15, and the rs tio, or proportional feeding, of oil will be maintained, notwithstanding tiuctuations of pressure within the casing. The office of the bleeder is like unto that of the air dome in one respect, namely, it prevents the attainment of dangerous pressure, and aids in equalizing the pressure in opposition to the pressure of the pump, but the chief olice of the bleeder is to provide a return flow of oil which shall be proportional to the speed of the pump and the consequent pressure within the cavity. It will be obvious that as the pump supplies oil in excess of the capacity of the outlets, the pressure Within the device necessarily rises when the speed of the pump is increased. Such increase compensates for the quicker cut-off, or closure, of the outlet openings, and thereby maintains the flow, or quantity, of oil delivered to the outlets during each revolution of the disk. The bleeder, or by-pass, permits this fluctuation of pressure, as nothing else except a very large air dome would do. If the pressure within the cavity was kept constant, as by leaving the regulating valve free, an increase in the speed of the disk would necessarily lessen the feed of oil to the machine parts; whereas, the bleeder, by providing a passage of fixed size, allows the necemary escape of oil, but isv directly responsive to the speed of the pump, it being obvious that the discharge of oil through the bleeder will be proportional to the pressure attained. In this regard the bleeder may be said to serve the purpose of an automatic valve, responsivc to different pressures, which might be substituted in the place of the simple bleeder here shown, and which is less desirable, and, hence, not shown. I desire that it shall Abe understood that in practice, the shaft of my device is preferably driven from some rotating part of the machine or engine to he lubricated, and my lubricator possesses distinctive advantages in such uses, for the reason that the action of the lubricator is at all times directly responsive to variations of speed in the machine or engine. I also desire that it shall be understood that the distributer described herein is employed as the most convenient means for securing minute distribution of the oil to a large number of outlet openings. The distributer may be dispensed with without changing the operation or lessening the utility of the remaining parts of the device,

but in cases Where I dispense with the distributer, or disk. it is necessary to minutely adjust the pin valves 15, and I prefer to employ the disk simply because it permits less minute adjustment of the pin valves, it being obvious that the outlets may be more widely opened when the discharge of oil thcreinto is intermittent. The foregoing will make it obvious that the bleeder is not combination with a pump for forcin has performed its/work satisfactorily when the variation fspeed was not extreme, it being obvious hat' comparatively slight varzation but little eii'ects the outflow of'oil through rthe opening in the disk. Nevertheless, I much prefer to, equi tors with bleder passages an valves when applying the same to the automobile engines and thelike, in which the speed varies from few'revolutions to over a thousand revolutions per minute.

As various modifications of my invention will readily suggest themselves to one skilled in the art, I do not confine my invention to e specific construction herein shown and described.

Having thus described my invention, I

claim as new, and desire to secure by Let-I ters Patent,

l. An improved force feed lubricator, comprising a chambered casing, provided with a plurality of outlets, in combination with means for regulating the flow of oil through said outlets, a pump for forcing oil into said casing2 a bleeder, or by-pass, extending from said casing to the intake side of said pump, a spring pressed valve normally blocking the said bleeder and other means for regulating the capacity of said bleeder, substantially7 as described.

2. An improved force feed lubricator, comprising a cliaiiibered casing, provided with a plurality of suitably valved outlets, in oil into said casing, an air dome within sai casin said outlets, and a bleeder, or by-pass, leading from the interior of said casing, substantially as described.

3. A motor adapted t) be run at various speeds and having a plurality of bearings, in combination with a mechanically operated oiling device, means connecting the device with the motor for operation thereby at proportional speeds. said oiling device comprismi; a chainbered casing provided with a plurarity of suitable valve outlets, delivery pipes connecting the several outlets with respective bearings, a pump for forcing oil into the casing, a bleeder leading from said casing, and a controlling valve for said ifleeder. substantially as described..

i. An improved force feed lubricator, comprising a chaiiibered body., or casing, provided with a plurality of suitably valved outlets, a pump for forcing oil into said casing in combination with a distributer within said casing arranged between said pump and said outlets, for controlling the discharge of oil therefrom, means for actuating said distributor, the pump being also actuated by said means, and an air dome interposed'between the pump .and said outlets, Substanz tiall y as described.

An improved force feed lub r1cator,

my lubricaand arranged between said pump and.

comprising a chambered body, or casing, which is provided with a plurality of suitably valved outlets, in combination with a pump for forcing oil into said casing, a bleeder connecting said casing with the in- .take side of said pump, and a constant ressure valve, as and for the purpose speci ed.

6.` An improved force feed lubricator, com rising a. chambered body, or casing, in com ination with a plurality of suitably valved outlets leading therefrom, an air dome, a pump for forcing oil into said casing, a bleeder valve connecting the casing with the intake side of said pump, and a constant pressure valve, substantially as described.

7. An improved force feed lubricator, comprising a chanibered body. or casing, in com ination with a plurality of suitably valved outlets leading therefrom, an air dome, a ump for forcing oil into said cas. ing', a b eeder valve connecting the casing with the intake side of said pump, and a constantipressure valve, and means for locking said constant ressure valve shut, substantially as descri ed. l

8. An improved force feed lubricator, comprising a ohainbered body, or casing,

rovided with a plurality' of vali/ed outlets, in combination with. a rotary distrlbuter arranged in said casing, means for driving said distributer and pump,l and an auxiliary chamber within said casing serving as an air dome and communicating at its lower end only with the interior of said casing through a restricted passage, substantially as described.

9. An improved force feed lubricator, comprising a chambered body or casing, which isprovided with a plurality of valved outlets, in combination with a pump fork forcing oil into said casing, a distributer within said casing arranged between said pump and. said outlets, a shaft connected with said distributer and the plunger of said pump for driving same, and an air deine within said casing, substantially as described.

10. An improved force feed lubricator, comprising a chanibered body, or casing, in combination with a plurality of valved outlets leading from said casing, a distributer Within the casing, an air dome, an oil pump connected to the casing, means within the casing for driving said distributer and pump, a valved bleeder, and a constant pressure adjusting valve, substantially as described.

11. An improved force feed lubricator, comprising a chambered body, or casing, containing a main chamber and an air dome, in combination with a plurality of outlets leading from said casing, a pump for fore ing oil into said casing, a valved bleeder connecting the casing with the intake end of Ilrinw III;

said eil reservoir, means within said casing arranged between said extensions for forcing oil into said chamber through said inlet and thereby placing the trapped air in the air chamber under pressure, an outv let passage cnmmunrutlng with one of the extensions nf the air ehmnber, a spring con trolled blender valve Cmmeetng said out let passage with the inlet passage 0f the oil reservoir, :l plurality of oil delivery Openings communcntx'xg with the outlet of said oil reservoir, and a perforated distributer within said casing controlling the flow of oil through said delivery openings.

In testimony whereof, I have hereunto 15 set my hzmd` this 5th day of December, 1906, in the presence of two subscribing witnesses.

CHARLES GILBERT HAVVLEY.

Xttnesses:

GEORGE J. READ, M. SIMON. 

